Young adults with arthritic hips

An editorial error occurred in this editorial by M D Northmore-Ball (2 August, p 266). At the end of the fourth paragraph the statement, “a recent case series has shown maintenance of symptomatic improvements, with no development of osteoarthritis in about 80% of patients treated by acetabular redirection at an average age of 10 years” should have read “at an average follow up of 10 years.”